80890450 has 12 divisors (see below), whose sum is σ = 150456330. Its totient is φ = 32356160.

The previous prime is 80890441. The next prime is 80890451. The reversal of 80890450 is 5409808.

It can be written as a sum of positive squares in 3 ways, for example, as 45118089 + 35772361 = 6717^2 + 5981^2 .

It is not an unprimeable number, because it can be changed into a prime (80890451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 808855 + ... + 808954.

Almost surely, 2^80890450 is an apocalyptic number.

80890450 is a deficient number, since it is larger than the sum of its proper divisors (69565880).

80890450 is a wasteful number, since it uses less digits than its factorization.

80890450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617821 (or 1617816 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 80890450 is about 8993.9118296768. The cubic root of 80890450 is about 432.4797232856.

The spelling of 80890450 in words is "eighty million, eight hundred ninety thousand, four hundred fifty".